Home / 8,747.12-13,121.46-2,903.78

Finding the Fourth Proportional to 8,747.12, 13,121.46 and 2,903.78

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Solution

The fourth proportional to 8,747.12, 13,121.46 and 2,903.78 is: 4,355.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.12 : 13,121.46 = 2,903.78 : x
  2. Step 2: Convert to fraction form
    8,747.12/13,121.46 = 2,903.78/x
  3. Step 3: Cross multiply
    8,747.12x = 13,121.46 × 2,903.78
  4. Step 4: Simplify right side
    8,747.12x = 38,101,833.12
  5. Step 5: Solve for x
    x = 38,101,833.12/8,747.12
  6. Step 6: Final answer
    x = 4,355.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.